| 31,7 → 31,7 |
|---|
| .global context_save |
| .global context_restore |
| |
| #include <kernel/arch/context_offset.h> |
| #include <libarch/context_offset.h> |
| |
| ## Save current CPU context |
| # |
| 40,10 → 40,17 |
|---|
| # |
| context_save: |
| movq (%rsp), %rdx # the caller's return %eip |
| |
| # In %edi is passed 1st argument |
| CONTEXT_SAVE_ARCH_CORE %rdi %rdx |
| movq %rdx, OFFSET_PC(%rdi) |
| movq %rsp, OFFSET_SP(%rdi) |
| |
| movq %rbx, OFFSET_RBX(%rdi) |
| movq %rbp, OFFSET_RBP(%rdi) |
| movq %r12, OFFSET_R12(%rdi) |
| movq %r13, OFFSET_R13(%rdi) |
| movq %r14, OFFSET_R14(%rdi) |
| movq %r15, OFFSET_R15(%rdi) |
| |
| # Save TLS |
| movq %fs:0, %rax |
| movq %rax, OFFSET_TLS(%rdi) |
| 59,9 → 66,16 |
|---|
| # pointed by the 1st argument. Returns 0 in EAX. |
| # |
| context_restore: |
| movq OFFSET_R15(%rdi), %r15 |
| movq OFFSET_R14(%rdi), %r14 |
| movq OFFSET_R13(%rdi), %r13 |
| movq OFFSET_R12(%rdi), %r12 |
| movq OFFSET_RBP(%rdi), %rbp |
| movq OFFSET_RBX(%rdi), %rbx |
| |
| CONTEXT_RESTORE_ARCH_CORE %rdi %rdx |
| movq OFFSET_SP(%rdi), %rsp # ctx->sp -> %rsp |
| |
| movq OFFSET_PC(%rdi), %rdx |
| movq %rdx,(%rsp) |
| |
| # Set thread local storage |